1. Go to the Customers tab > Customers. Open a project’s context menu, and select Languages.
2. Select “Customised language combinations only” and click the plus (+) symbol next to “Add source language”.
3. Select source and target languages. Make sure they have been added to the column on the right, then click the Add button.
4. The next time you create a project, you can select one of the defined source languages.
5. Target languages have been reduced only to those selected for this customer.